C# 4 and .NET 4

Printing ❘ 1091
figure 37-14
To one overload of the Write() method of the XpsDocumentWriter you can also pass a Visual, which is
the base class of UIElement, and thus you can pass any UIElement to the writer to create an XPS document
easily. This functionality will be used in the following printing example.
PrinTing
The simplest way to print a FixedDocument that is shown on the screen with the DocumentViewer is to
invoke the Print() method of the DocumentViewer that has the document associated. This is all that
needs to be done with the menu planner application in an OnPrint() handler. The Print() method of
the DocumentViewer opens up the PrintDialog and sends the associated FixedDocument to the
selected printer:
private void OnPrint(object sender, RoutedEventArgs e)
{
viewer.Print();
}
Printing with the Printdialog
code snippet CreateXps/DocumentPage.xaml.cs
If you want more control over the printing process, the PrintDialog can be instantiated, and the
document printed with the PrintDocument() method. The PrintDocument() method requires a
DocumentPaginator with the first argument. The FixedDocument returns a DocumentPaginator object
with the DocumentPaginator property. The second argument defines the string that shows up with the
current printer and in the printer dialogs for the print job:
var dlg = new PrintDialog();
if (dlg.ShowDialog() == true)
{
dlg.PrintDocument(fixedDocument.DocumentPaginator, "Menu Plan");
}
code snippet CreateXps/DocumentPage.xaml.cs
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